www.pudn.com > BIOS-S3C2410.rar > comload.c

#include "def.h" 
#include "2410addr.h" 
#include "2410lib.h" 
 
extern U32 downloadAddress, downloadFileSize; 
static U8 *temp; 
 
static void __irq Uart0RxInt(void) 
{ 
    ClearSubPending(BIT_SUB_RXD0); //rSUBSRCPND = BIT_SUB_RXD0;          //Clear pending bit (Requested) 
    ClearPending(BIT_UART0); 
 
    *temp ++= RdURXH0();  
} 
 
void call_linux(U32 a0, U32 a1, U32 a2); 
 
void comdownload(void) 
{ 
	U32 size; 
	U8 *buf; 
	U16 checksum; 
	 
	puts("\nNow download file from uart0...\n"); 
	downloadAddress = _NONCACHE_STARTADDRESS; 
	buf  = (U8 *)downloadAddress; 
	temp = buf-4;		 
	 
	pISR_UART0 = (U32)Uart0RxInt;		//串口接收数据中断 
	ClearSubPending(BIT_SUB_RXD0); 
	ClearPending(BIT_UART0); 
	EnableSubIrq(BIT_SUB_RXD0); 
	EnableIrq(BIT_UART0);	 
 
	while((U32)temp<(U32)buf)		 
    { 
        Led_Display(0); 
        Delay(1000); 
        Led_Display(15); 
        Delay(1000); 
    }							//接收文件长度,4 bytes	 
	 
	size  = *(U32 *)(buf-4); 
	downloadFileSize = size-6; 
    printf("Download File Size = %d\n", size); 
	 
	while(((U32)temp-(U32)buf)<(size-4)) 
	{		 
		Led_Display(0); 
        Delay(8000); 
        Led_Display(15); 
        Delay(8000);		 
	} 
	 
	DisableSubIrq(BIT_SUB_RXD0); 
	DisableIrq(BIT_UART0); 
	 
	checksum = 0; 
	for(size=0; size